Mental Ray Subdivision Approximation for tiled displacments

Discussions about the use of Realflow's Renderkit
photoreel
Posts: 15
Joined: Sun Nov 13, 2011 6:28 pm

Mental Ray Subdivision Approximation for tiled displacments

Postby photoreel » Tue Aug 11, 2015 5:08 pm

I've successfully tiled a hybrido displacement map in Maya. However, the renders appear faceted because the underlying geo in Maya is too low resolution. To solve this I tried increasing the number of faces on the geo in Maya, but the geo has to be very high resolution to eliminate all the faceting from the render. I also tried adding a Mental Subdivision Apporoximation node to my geo, which does eliminate the faceting from the renders, but also results in the displacement maps not tiling correctly. I'm creating a very large ocean, so using high res geo is not really an option. Does anyone know if there's a way to make the Mental Ray Subdivision Approximation Node work with tiled displacment maps from Hybrido?
Attachments
subDivApproxRender.jpg
This image shows the problem introduced when adding a subdivision approximation node using Mental Ray. The planes don't meet in the center
subDivApproxRender.jpg (84.69 KiB) Viewed 1839 times


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